AM.I.C.S4

From the FAA library

• Aircraft Weight and Balance Handbookp. 9-2
  Chapter 9: Weight and Balance Control— Commuter Category and Large Aircraft › Establishing the Initial Weight of an Aircraft

  they are weighed on ramp-type scales. The scales must be properly calibrated, zeroed, and used in accordance with the manufacturer’s instructions. Each scale should be periodically checked for accuracy as recommended in the manufacturer’s calibration schedule, either ... exceed 12 months. Determining the Empty Weight and Empty Weight CG (EWCG) When the aircraft is properly prepared for weighing, roll it onto the scales, and level it. The weights are measured at three weighing points: the two main wheel…

• Aircraft Weight and Balance Handbookp. 3-2
  Chapter 3: Weighing the Aircraft and Determining the Empty Weight Center of Gravity › Equipment for Weighing

  aircraft off the ground from all load points can be an inconvenience, as well as a safety risk, which some operators would rather avoid by opting for more expensive—but simpler to use—platform equipment. In addition, weighing with platform ... scales typically takes only one-third of the time needed to weigh with load cells. Figure 3-2. Ramp scales. All scales for aviation use, manual or electronic, must be protected when stored or shipped, and they must be checked…

• Aviation Maintenance Technician Handbook - Generalp. 6-1
  Chapter 6: Aircraft Weight & Balance › Requirements for Aircraft Weighing

  which requires additional engine power and therefore additional fuel flow to maintain airspeed. The most efficient condition for an aircraft is to have the point where it balances fall close to, or exactly at, the aircraft’s center of lift ... this were the case, little or no flight control force would be needed to keep the aircraft flying straight and level. In terms of stability and safety, however, this perfectly balanced condition might not be desirable. All factors that affect…